trap signals for "-serial mon:stdio"
[qemu.git] / qemu-coroutine-sleep.c
1 /*
2 * QEMU coroutine sleep
3 *
4 * Copyright IBM, Corp. 2011
5 *
6 * Authors:
7 * Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
8 *
9 * This work is licensed under the terms of the GNU LGPL, version 2 or later.
10 * See the COPYING.LIB file in the top-level directory.
11 *
12 */
13
14 #include "block/coroutine.h"
15 #include "qemu/timer.h"
16
17 typedef struct CoSleepCB {
18 QEMUTimer *ts;
19 Coroutine *co;
20 } CoSleepCB;
21
22 static void co_sleep_cb(void *opaque)
23 {
24 CoSleepCB *sleep_cb = opaque;
25
26 qemu_coroutine_enter(sleep_cb->co, NULL);
27 }
28
29 void coroutine_fn co_sleep_ns(QEMUClock *clock, int64_t ns)
30 {
31 CoSleepCB sleep_cb = {
32 .co = qemu_coroutine_self(),
33 };
34 sleep_cb.ts = qemu_new_timer(clock, SCALE_NS, co_sleep_cb, &sleep_cb);
35 qemu_mod_timer(sleep_cb.ts, qemu_get_clock_ns(clock) + ns);
36 qemu_coroutine_yield();
37 qemu_del_timer(sleep_cb.ts);
38 qemu_free_timer(sleep_cb.ts);
39 }